Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2016 4 9.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19) NOAA-19 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/14/2016   02:03:45   ( -81.01, -84.33) 04/14/2016   02:05:00  ( -81.01, -84.34)    0.53                75
 04/14/2016   02:54:41   (  81.01,  83.20) 04/14/2016   02:55:44  (  81.00,  83.29)    1.87                63
 04/14/2016   03:45:47   ( -81.01,-109.78) 04/14/2016   03:46:30  ( -81.01,-109.74)    0.97                43
 04/14/2016   04:36:43   (  81.01,  57.74) 04/14/2016   04:37:14  (  81.00,  57.88)    2.64                31
 04/14/2016   05:27:49   ( -81.01,-135.23) 04/14/2016   05:28:00  ( -81.01,-135.14)    1.75                11
 04/14/2016   06:18:45   (  81.01,  32.28) 04/14/2016   06:18:45  (  81.02,  32.11)    3.12                 0
 04/14/2016   07:09:50   ( -81.01,-160.31) 04/14/2016   07:09:29  ( -81.00,-160.18)    2.52                21
 04/14/2016   08:00:47   (  81.01,   6.83) 04/14/2016   08:00:15  (  81.02,   6.71)    2.29                32
 04/14/2016   08:51:52   ( -81.01, 174.24) 04/14/2016   08:50:59  ( -81.00, 174.42)    3.28                53